Review Request 128021: [libtaskmanager] Prevent from dereferencing dangling pointer

[David Edmundson]

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Do you have a backtrace? Mostly so I can see if we can close any bug reports.

A TaskManager.Backend objects is owned by the taskItem - so the lifespan of the TaskItem will *always* outlive the Backend - so we shouldn't need a smart pointer.
The ToolTip is more questionable, it has the same lifespan as the backend, so it's a bit confusing as to which order they get deleted - so there is scope for a problem.

I'll wait for Eike, but +1 from me.

- David Edmundson


On May 26, 2016, 1:04 p.m., Anthony Fieroni wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/128021/
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> (Updated May 26, 2016, 1:04 p.m.)
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> Review request for Plasma and Eike Hein.
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> Repository: plasma-desktop
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> Description
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> This pointers are *shared* between plasma-framework and libtaskamanger
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> Diffs
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>   applets/taskmanager/plugin/backend.h 1d1a7a1 
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> Diff: https://git.reviewboard.kde.org/r/128021/diff/
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> Testing
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> I experience rare and strage crashes in plasmashell without backtrace when tooltip is dismissed in taskmanager. I guess stack is *smashed* cause dereferencing invalid pointer.
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> Thanks,
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> Anthony Fieroni
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